400 results about "Carbon substrate" patented technology

The invention discloses a method for preparing an ultrahigh-temperature ceramic coating by an ultrahigh-temperature metal gas source based on a molten salt medium, which comprises the following steps of: mixing low-melting-point salt A, metal fluoride and metal M to obtain a mixture C, putting the mixture C into a first crucible, mixing low-melting-point salt B and metal M to obtain a mixture D, putting the mixture D into a second crucible, putting a carbon base material into a deposition furnace, and performing vacuum drying to obtain the ultrahigh-temperature ceramic coating. Heating the first crucible to melt the mixture C to obtain a melt E, and heating the second crucible to melt the mixture D to obtain a melt F; carrier gas is guided into the first crucible, the carrier gas flow passes through the melt E to form gas flow containing a metal gas source, the gas flow containing the metal gas source is guided into the second crucible, and the gas flow containing the metal gas source is filtered by the melt F in the second crucible to form a pure metal reaction gas source, and finally, a pure metal reaction gas source is introduced into the deposition furnace for deposition of the carbon base material, and the ultra-high-temperature ceramic coating is obtained. The method is easy to operate and low in cost.

The invention provides a composite photo-thermal hydrogel for seawater desalination and a preparation method and application thereof, the hydrogel has a structural unit of a structure as shown in a formula I. COF with photo-thermal performance is compounded with the hydrogel, and the hydrogel has a three-dimensional long-range ordered pore structure to promote transmission of water molecules; and the COF dispersed in the material contains porphyrin and a C = N double-bond connection structure, so that the material has excellent photothermal conversion efficiency. Therefore, under the irradiation of sunlight, the composite photo-thermal hydrogel disclosed by the invention can realize photo-thermal conversion to realize seawater evaporation, the seawater evaporation rate reaches 3.6 kgm <-1 > h <-1 >, and the performance is improved by about 3 times compared with that of a traditional carbon-based material. According to the preparation method of the composite photo-thermal hydrogel, large and complex equipment is not involved in the preparation method, the preparation technological process is simple, and industrial large-scale production is facilitated; and the reaction temperature in the preparation process is low, the energy consumption is also reduced, and the cost advantage is remarkable.

The invention discloses a surface oxidation monatomic nano-alloy catalyst as well as a preparation method and application thereof, and belongs to the technical field of advanced nano-energy materials and electro-catalysis. A surface-oxidized monatomic nano-alloy catalyst comprises a hydroxylated carbon nanotube carrier and bimetallic nano-alloy particles loaded on the hydroxylated carbon nanotube carrier, in the bimetallic nano-alloy particles, non-noble metal elements are dispersed in noble metal nano-particles in a monatomic form, the size of the bimetallic nano-alloy particles is 3-4 nm, and the surface-oxidized monatomic nano-alloy catalyst is prepared from a surface-oxidized monatomic nano-alloy catalyst. An oxide layer with the thickness of 0.3-0.6 nm is arranged on the surface of the bimetallic nano-alloy particle; the loading amount of the noble metal is 5-15wt%. Ruthenium and other non-noble metal elements are alloyed and anchored on the carbon material substrate, the conductivity of the catalyst can be greatly improved, the size of alloy particles is accurately controlled within the range of 3-4 nm, active sites can be exposed to the maximum extent, and structural stability is considered.

The application provides a preparation method of a self-coiled structure molybdenum disulfide / nitrogen-doped porous carbon composite material, a product and application, high-content nitrogen-doped porous carbon material is synthesized by inducing dicyandiamide molecules to undergo a supramolecular self-assembly process, and on this basis, a hydrothermal reaction is carried out to coat molybdenum sulfide sheet layer material on the surface, and finally, a self-heating coiling treatment is carried out to form a carbon-based electrocatalyst of the self-coiled structure molybdenum disulfide / nitrogen-doped porous carbon. Compared with a high specific surface area carbon-based catalyst, high doping concentration of nitrogen atoms can provide more electron-rich properties to facilitate the adsorption of substances, and the self-coiled carbon-based material can exhibit very excellent electrochemical performance, especially in the aspect of electrochemical hydrogen production. The preparation method is simple in operation, low in preparation cost and suitable for large-scale production.

Battery cell, including: a case; and an electrode assembly located inside the housing, wherein the electrode assembly comprises a positive electrode plate, a negative electrode plate and a separator film, the separator film being arranged between the positive and the negative electrode plates, where The negative electrode plate comprises a negative electrode current collector and a negative electrode film layer located on at least one side of the negative electrode current collector. The negative electrode film layer comprises an active material of the negative electrode. The negative electrode film layer comprises a first negative electrode film layer located away from the negative electrode current collector and a second negative electrode film layer located near the negative electrode current collector. The first negative electrode film layer comprises a first active material of the negative electrode, and the second negative electrode film layer comprises a second active material of the negative electrode.The first active material of the negative electrode contains a silicon-based material and a carbon-based material, the second active material of the negative electrode contains a carbon-based material, and the mass fraction of the silicon element in the negative electrode film layer is 0.5% to 6%. The separator film comprises a base film, a first porous coating on the side of the base film facing the negative electrode plate, and a second porous coating on the side of the base film facing the positive electrode plate. Both the first and second porous coatings contain filler particles.

The invention relates to the field of energy storage batteries, in particular to a surface modification method of a carbon-based negative electrode material for a lithium ion battery and the carbon-based negative electrode material.The surface modification method comprises the following steps that S1, the carbon-based material, soluble saccharides, a lithium source and a solvent are mixed; s2, carrying out ball milling treatment on the slurry to obtain a precursor mixture; s3, calcining the precursor mixture to obtain a primary modified carbon material; s4, treating the primary modified carbon material in ozone to obtain an oxidation modified carbon material; and S5, dispersing the oxidation modified carbon material in a solution containing a conductive monomer and an oxidizing agent for chemical polymerization reaction, and depositing on the surface of the carbon material to form a polymer coating layer, thereby obtaining the surface modified carbon-based negative electrode material. By constructing a pre-lithiated carbon coated inner core and an ozone activation interface and preparing a modification layer of a conductive polymer, the core problems that a traditional carbon negative electrode is low in first efficiency, short in cycle life and poor in rate capability and is difficult to consider at the same time are solved.

The application provides a secondary battery and an electric device, the secondary battery comprising a negative electrode sheet, the negative electrode sheet comprising a negative electrode current collector and a negative electrode film layer on at least one surface of the negative electrode current collector, the negative electrode film layer comprising a negative electrode active material, the negative electrode active material comprising a first carbon-based material and a second carbon-based material, the first carbon-based material comprising artificial graphite secondary particles, the second carbon-based material comprising an outer region and an inner region inside the outer region, the outer region being a region extending from the surface of the particles of the second carbon-based material to the interior of the particles by a distance of 2.5 μm, in a cross-sectional view of the second carbon-based material, the total pore area of the outer region being denoted as S1, the total pore area of the inner region being denoted as S2, and S2>S1. The application can improve the cycle performance of the secondary battery.

The invention discloses a modified electrode with a unique nano structure, a preparation method of the modified electrode and application of the modified electrode in an aqueous organic flow battery, and relates to the technical field of flow batteries. The preparation method comprises the following steps: pretreating a carbon-based material, and dipping the pretreated carbon-based material in a preheated metal organic framework material solution; efficient mixed loading of the carbon-based material and the metal organic framework material is realized through ultrasonic action, and then the aqueous organic flow battery electrode is obtained through a multi-stage thermal management process and treatment. The surface of the carbon-based material is finely modified through the metal organic framework material, so that metal atoms can be uniformly distributed and serve as electrochemical active sites, and compared with an original carbon-based material, the electrode has better catalytic performance and electrochemical performance on organic active electrolyte, and the electrochemical performance of the electrode is better than that of the original carbon-based material. And moreover, the rate characteristic, the energy efficiency and the utilization rate of the electrolyte are improved, and a solution is provided for the efficient and long-life aqueous organic flow battery.

The invention provides a high-capacity silicon-carbon composite negative electrode material and a preparation method thereof, and relates to the technical field of battery materials, the high-capacity silicon-carbon composite negative electrode material comprises the following components by mass: 20-50 parts of silicon-based particles, 3-8 parts of an interface modification layer, and 45-75 parts of a carbon matrix; the silicon-based particles are nano silicon; the interface modification layer is oxide or nitride and coats the surfaces of the silicon-based particles; the carbon substrate is prepared from 20 to 40 parts of graphite, 15 to 25 parts of amorphous carbon and 5 to 10 parts of carbon nanotubes; through the three-layer structure of the silicon-based particles, the interface modification layer and the carbon substrate, the cooperation of high capacity and high stability is realized, and the nano silicon-based particles give full play to the advantage of high capacity, so that the first discharge specific capacity of the material is higher; the interface modification layer reduces interface impedance of silicon and carbon and inhibits side reaction of silicon and electrolyte; the three-dimensional network of the carbon matrix not only reduces the electrode impedance, but also provides buffering for silicon volume expansion, and is obviously superior to the traditional graphite and the existing silicon-carbon negative electrode.

The invention relates to the technical field of electrodes for vanadium batteries, in particular to a preparation method of a catalytically active electrode for a vanadium battery, the catalytically active electrode and application of the catalytically active electrode. The preparation method comprises the following steps: loading a bismuth oxide water-phase dispersion liquid as a precursor on the surface of a graphite felt electrode substrate, placing the graphite felt electrode in an inert atmosphere to carry out a carbon thermal reduction reaction, and carrying out a solid-phase reaction on bismuth oxide and the graphite felt carbon substrate in the inert atmosphere to generate a strongly combined catalytic active site in situ. By pertinently controlling the concentration of the bismuth oxide water-phase dispersion liquid and the temperature of the carbon thermal reduction reaction, active components in the prepared catalytic active electrode for the vanadium battery are uniformly and firmly combined on the surface of a matrix, and high uniformity and high stability are shown. And meanwhile, a loading-first and one-step carbon thermal reduction method is adopted, so that large-scale production can be realized, the electrochemical activity of the product is effectively improved, the uniformity and consistency of the performance can be realized, and the multi-dimensional strict requirements of commercial production on the electrode performance and the manufacturing efficiency are effectively met.

The present invention relates to a negative electrode for an all-solid-state battery, an all-solid-state battery including same, and a method for manufacturing an all-solid-state battery. More specifically, the negative electrode for an all-solid-state battery includes a positive electrode layer, a negative electrode layer, and a solid electrolyte layer disposed between the positive electrode layer and the negative electrode layer, wherein the negative electrode layer includes a negative electrode current collector, a first coating layer on the negative electrode current collector, and a second coating layer on the first coating layer. The first coating layer includes a first carbon-based material, a first metal, and a first binder, and the second coating layer includes a second carbon-based material, a second metal, and a second binder. The first binder includes a rubber-based binder, while the second binder includes a non-rubber-based binder.

A method is provided for modifying a via from a PCB including a plurality of subassemblies comprising a plurality of layers. The method may include drilling a via of the PCB to form a through-hole to remove an unwanted material in the via of the PCB. The method may also include depositing a carbon-based material over an inner wall of the through-hole. The method may further include back drilling a first portion of the through-hole by a drill from the top of the PCB to form a first blind via. The method may also include selectively plating a conductive material over the carbon-based material to form a plated through-hole.

Disclosed are positive electrodes, rechargeable lithium batteries including the positive electrode, and methods of manufacturing the positive electrode. The positive electrode includes a current collector and a positive electrode active material layer on the current collector. The positive electrode active material layer comprises a first positive electrode active material that comprises lithium-nickel-based composite oxide and has a bare form without a carbon coating on a surface thereof, a second positive electrode active material that comprises lithium-nickel-based composite oxide and has a core and a carbon coating layer on the core, a conductive material that comprises a carbon-based material, and a binder.

An anode active material according to an example of the present disclosure comprises: a first active material comprising a silicon-based material; and a second active material comprising a carbon-based material, wherein the second active material comprises at least one of the first carbon-based material and the second carbon-based material, and an expansion rate over the total length or an expansion rate over the total width of an anode comprising the anode active material satisfying the following equation 3: a1 = k1 * x / y a2 = k2 * x / y , where a1 denotes the expansion rate over the total length, a2 denotes the expansion rate over the total width, k1 and k2 denote real numbers, and x denotes a weight of the first carbon-based material and y denotes a weight of the second carbon-based material.

The present invention relates to a positive electrode active material for a lithium-sulfur battery and a manufacturing method therefor, the positive electrode active material for a lithium-sulfur battery comprising a composite of a sulfur-based substance, a metal halide salt, and a carbon-based material doped with a transition metal.

Electrochemical CO2 upgrading into C2 oxygenates is achieved a membrane electrode assembly (MEA) cell comprising metal plates, an anion exchange membrane (AEM), a cathode and anode, wherein the cathode comprises nanoscale Cu and Ag nanoparticles on a hydrophobic carbon substrate, wherein CO2 is fed to the cathodic side and converted to C2 oxygenates at the electrocatalyst surface.

The application provides a carbon activation device and a carbon activation system, and relates to the technical field of porous carbon preparation. The carbon activation device comprises a device body and a plurality of flow guide structures. The device body has an activation cavity and an expansion cavity which are in communication with each other. The activation cavity is located below the expansion cavity. The device body has a first inlet which is in communication with the activation cavity and is used for facilitating the input of active gas, and a second inlet which is in communication with the expansion cavity and is used for facilitating the input of carbon-based materials. The plurality of flow guide structures are arranged in the activation cavity in a vertical direction. Each flow guide structure has a plurality of flow guide channels with different extension directions, so that the active gas forms a multi-directional diffusion gas flow field after flowing through the flow guide structure. As a result, the carbon-based materials are uniformly distributed in the activation cavity under the driving of the gas flow field, and an activation reaction is generated with the active gas, thereby obtaining porous carbon. The accumulation of the carbon-based materials is avoided, the reaction efficiency between the carbon-based materials and the active gas is improved, and the reliability of the carbon activation device in preparing porous carbon is improved.

A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the negative electrode are provided. The negative electrode includes: a negative electrode current collector including a carbon layer including a first porous substrate and a carbon-based material existing inside the first porous substrate and a silicon layer including a second porous substrate and a silicon-based negative electrode active material existing inside the second porous substrate; and a negative electrode active material layer arranged on a surface of the negative electrode current collector and including a negative electrode active material.

The invention provides a manufacturing method of a negative electrode material, the negative electrode material, a negative electrode and a lithium ion battery, and the method comprises the following steps: adding a metal salt compound into a first solvent to form a first mixture; adding a silicon-based material into the first mixture to form a second mixture; performing first heat treatment on the second mixture to obtain an intermediate product; adding a carbon-based material and the intermediate product into a second solvent to form a third mixture; and performing a second heat treatment on the third mixture to obtain the negative electrode material, in which the negative electrode material comprises a metal silicide and a carbon coating layer coating the metal silicide, and both the metal silicide and the carbon coating layer are formed during the second heat treatment.

The invention discloses an all-vanadium redox flow battery electrode and a modification method thereof, and the modification method comprises the following steps: dipping a carbon-based material in a treating agent aqueous solution, the treating agent being one or more of ammonium sulfate, ammonium bisulfate and ammonium persulfate; and carrying out drying treatment and pyrolysis treatment on the impregnated carbon-based material to obtain the all-vanadium redox flow battery electrode. According to the method, ammonium sulfate, ammonium bisulfate or ammonium persulfate is decomposed into NH3, H2O and SO3, H2SO4 is generated from SO3 and H2O, the surface of the carbon felt is subjected to mild etching, the pore structure of the surface of the carbon felt is increased, the reaction activity specific surface is improved, meanwhile, sulfur and nitrogen atoms are embedded into a carbon skeleton to form a doped structure, sulfur and nitrogen are introduced through the double-doping effect, and the catalytic activity of the oxidation-reduction reaction of vanadium ions (VO2 + / VO2 + and V2 + / V3 +) is enhanced. The modification method provided by the invention is simple and environment-friendly in process, avoids discharge of strong acid waste liquid, does not need a cleaning step, and meets green production requirements.

The invention relates to an electrochemical selective oxidation method of butanone, which is carried out in an electrolysis system and specifically comprises the following steps: (1) an anode chamber of the electrolysis system comprises an anode electrolyte and an anode electrode, and the surface of the anode electrode comprises an anode catalyst; and (2) mixed gas of O2 and butanone is introduced into a cathode chamber of the electrolysis system, two-electron redox reaction is carried out on the surface of a cathode catalyst of a cathode electrode to reduce O2 into H2O2, the generated H2O2 and butanone react on the interface of the cathode catalyst, a target organic compound is selectively generated, and the cathode catalyst comprises a carbon-based material. The invention aims to solve the three core problems of poor selectivity, serious pollution and low safety in the traditional butanone oxidation process, and compared with the traditional strong oxidation process, the method adopts an electrochemical synthesis path, takes electrons as a cleaning reagent, realizes high-precision selective control on the butanone oxidation path, can directionally generate a high-value product, and has the advantages of high product yield and high product quality. And the problems of complex product and difficult separation in the traditional process are fundamentally avoided.

The invention discloses a Joule catalytic device and method for preparing low-carbon olefins, alkanes and oxygen-containing organic matters, and the method comprises the following steps: electrifying a catalytic substrate conductive material, enabling the catalytic substrate conductive material to be in contact with a carbon-containing substance and a reducing gas, and carrying out a reaction to obtain a product; the catalytic substrate conductive material comprises a carbon substrate and a metal catalyst arranged on the carbon substrate; the reaction pressure is 0.1 to 5 MPa. According to the Joule catalytic device adopting the integral catalytic matrix conductive material, interaction between the catalyst and the carbon substrate is promoted through the electric heating synergistic effect, the tolerance of the reaction to the temperature and pressure is expanded, the reaction can still be smoothly carried out even under the high-temperature and high-pressure conditions, and by regulating and controlling the reaction conditions or the catalyst, the reaction efficiency is improved. The selective regulation and control of products or product proportions are realized.

The invention discloses a method for constructing a high-conductivity / heat-conductivity carbon material based on microwave induction, and belongs to the technical field of nano carbon material synthesis. According to the method, methane and auxiliary gas are introduced into a variable-frequency microwave vapor deposition system, and the microwave frequency is dynamically regulated and controlled within the range of 2.43-7.5 GHz, so that the methane cracking rate, plasma energy distribution and deposition kinetics are regulated; controllable deposition of multi-scale and multi-morphology composite carbon structures (carbon nanotubes, graphene-like and amorphous carbon) on the surface of a single substrate under the constant temperature condition is achieved, and therefore the microstructure and the electromagnetic response performance are optimized. According to the method, the frequency conversion microwave technology is introduced into a methane cracking deposition system for the first time, atomic-scale controllable deposition of the carbon material is achieved, complex temperature gradient control is avoided, and the obtained carbon-based material has high electric conductivity / heat conductivity, wide-frequency-band shielding effectiveness and excellent structural stability.

The negative active material according to the embodiment of the present disclosure includes: a first active material including a silicon-based material; and a second active material including a carbon-based material, wherein the second active material includes at least one of a first carbon-based material and a second carbon-based material, and a total length expansion rate or a total width expansion rate of a negative electrode including the negative active material satisfies the following expression 3: [Expression 3] a1 = k1 × x / y a2 = k2 × x / y, wherein a1 denotes the total length expansion rate, a2 denotes the total width expansion rate, k1 and k2 denote real numbers, x denotes a weight of the first carbon-based material, and y denotes a weight of the second carbon-based material.

The application provides a lithium ion battery positive electrode with high rate and high safety performance and a preparation method thereof. The preparation method comprises the following steps: S1, polymerizing a phosphite monomer containing trivalent phosphorus, a functional monomer with a phosphine oxide group and a methacrylate monomer to obtain a thermal expansion polymer inner core; adopting a liquid deposition and electrostatic self-assembly process to coat a solid lithium ion conductor and a carbon-based material on the surface of the inner core to form a brittle composite conductive shell layer, thereby preparing a core-shell structure flame-retardant microsphere; S2, coating a primer slurry containing a pyrolysis gas binder and a conductive agent on the surface of a current collector and drying the primer slurry at a temperature lower than the decomposition temperature of the binder to form a thermal trigger safety primer layer; and S3, mixing a positive electrode active material, a binder, a conductive agent and the core-shell structure flame-retardant microsphere to prepare a slurry, coating the slurry on the surface of the primer layer and drying the slurry through gradient temperature rising to obtain the positive electrode. The lithium ion battery positive electrode realizes the simultaneous consideration of high rate and high safety performance.

The invention discloses a preparation method of a carbon-based visible light photocatalytic material, and relates to the technical field of photocatalytic material preparation. Abandoned tobacco leaves are used as a carbon source, biochar is obtained through ethanol decoloration and low-temperature carbonization at 180-220 DEG C, the biochar is soaked in a ferric nitrate cobalt mixed solution after pretreatment, a chemical vapor deposition reaction is regulated and controlled through a multi-dimensional cooperative control system, and the carbon-based visible light photocatalytic material is obtained. And finally removing the catalyst by using nitric acid and purifying. The method solves the problems that a traditional photocatalyst depends on ultraviolet light, carbon-based material preparation has many side reactions, waste resources are wasted and the like. The prepared material has a high specific surface area and a uniform carbon coating layer, and is high in visible light absorption capacity, high in photon-generated carrier separation efficiency, capable of efficiently degrading dye wastewater and good in cycling stability. According to the invention, waste is turned into wealth, the process is green, and a low-cost and high-performance photocatalytic material and a preparation scheme are provided for treatment of dye pollution.

The present application belongs to the technical field of fuel cell electrocatalysts, and particularly relates to a bromine-modified iron-nitrogen-carbon oxygen reduction electrocatalyst with high iron loading and atomic dispersion, and a preparation method and application thereof. The electrocatalyst is a porous carbon-based material, and contains carbon, nitrogen, bromine and iron elements, wherein the iron is anchored in the nitrogen-doped carbon substrate in the form of atomic dispersion. The preparation method comprises the following steps: dissolving a Fe-based metal macrocycle compound in an organic solvent, mixing the organic solvent with an aqueous solution containing 2-methyl imidazole and a Br-containing precursor, and adding an aqueous solution containing a zinc salt and a surfactant for co-assembly to obtain a precursor; and pyrolyzing the precursor to obtain a bromine-modified Fe-N-C electrocatalyst. Compared with the Fe-N-C electrocatalyst without bromine modification, the electrocatalyst can effectively regulate the local coordination environment of iron sites, and has the advantages of atomic dispersion, high iron loading and excellent oxygen reduction reaction activity, and can be used in fuel cells and related electrochemical energy conversion devices.

The invention provides a high-performance dendritic silver and carbon-based material composite material and a preparation method and application thereof, the raw materials of the composite material comprise dendritic silver powder and a carbon-based material, the mass ratio of the dendritic silver to the carbon-based material is 0.2-0.7: 1, and the particle size of the dendritic silver powder is 1-10 [mu] m. The preparation method comprises the following steps: mixing dendritic silver powder with a carbon-based material (such as graphene or a carbon nanotube) according to a specific ratio, dispersing, coating and carrying out heat treatment to prepare the dendritic silver-carbon composite material. The composite material provided by the invention realizes high conductivity (about 1.2 * 10 S / cm), high thermal conductivity (gt, 1400 W / mK), excellent electromagnetic shielding effectiveness (gt, 40 dB), high flexibility (bending radius lt, 5 mm) and long-term stability (dispersion stability relative value gt, 0.95), compared with the prior art, the comprehensive performance is remarkably improved, and the composite material is suitable for the fields of efficient electrical conductivity, thermal conductivity, electromagnetic shielding and flexible electronic devices.

The application provides a carbon material, a preparation method and application thereof, a negative electrode sheet, a secondary battery and an electric device. The carbon material comprises a porous carbon base material and an amorphous carbon layer arranged on at least part of the surface of the porous carbon base material. When the carbon material is used as a negative electrode active material, the abundant porous structure in the porous carbon base material can be fully utilized for lithium / sodium extraction or lithium / sodium intercalation, and the abundant active sites on the surface of the porous carbon base material can be prevented from contacting electrolyte to generate side reactions, so that the initial coulombic efficiency and actual capacity of the secondary battery can be improved.

The utility model relates to a kind of high-temperature furnace is used to assist calibration infrared temperature measurement point's convenient tool, belong to carbon-based material production equipment field;Solve the existing infrared temperature measuring instrument debugging device debugging difficulty, dangerous coefficient is big, spends long time problem;Technical scheme is:Including infrared plug, infrared plug is provided with several fixed supports, fixed support is fixedly connected with anti-explosion light emitting piece by clamping device, recess is also set on infrared plug, recess is coaxially arranged with anti-explosion light emitting piece, the opening direction of recess is same with the light emitting direction of the light emitting part of anti-explosion light emitting piece, first through-hole is set on one side wall of recess, first through-hole, the light emitting part of anti-explosion light emitting piece and the observation hole of infrared temperature measuring instrument correspond, recess is connected to one end of infrared graphite tube, the other end of infrared graphite tube is connected on infrared support assembly, infrared temperature measuring instrument is also adjustably connected on infrared temperature measuring instrument component;The utility model is applied to carbon-based material production equipment.